Multiplying by Numbers Ending in Zeros

0’s and important friends

by Qiu Yat Fung

​0’s

​when you are multiply numbers with 0(or 0’s), you can leave the 0 away first and put them to the back of the answer(with no 0 or 0’s).For example:30x200=3x2+3 zeros=6+3 zeros=6000.

Multiple Choice

40x6000=?

• 24

• 240

• 2400

• 24000

• 240000

​important friends

there’s 2 important friends,25x4=100and 125x8=1000.Remember them and get answers very quickly!

Multiple Choice

24x25x4=?

• 2400

• 240

• 24

• 2.4

• 24000

​2 more questions to go!

​

Fill in the Blanks

125x8x250x40=?

Fill in the Blanks

100x25x32=?

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